Paper-making machine



Patented 9, 1926.

UNITED STATES .PATENT OFFICE.

GORDON E. MCCLAY AND HARRY v. -HAIGH'E CF SHERBROOKE, QUEBEC, CANADA, As-

rQIiATON 01# 'New was "'sIGfNoRsv To 'INGER'soLL-RAND CoMrAN'Y, 0E JERSEY CITY, NEW JERSEY, A COR- :eArER-NARING MACHINE.

Appiicanmiv med my 12., 19x21. 1 seria; No. 469,080.

To all whom it may concern:`-

Be it known that we,"GoRDoN.FRANC1s lvlcCLAY and HARRY VERooEHAIGl-i'r, both subjects of the King of GreatBritain, and

making machines known as,wet machines.

Thelinvention has for its objects to provide a wet machine which will 'be more ellicient and of a ygreater capacity than mavhinesfof this type heretofore in use; and

in which stressA and strain o'n parts of com- `parativelylight construction vwill be avoided. 1

A further object of the invention is to combine with sucha machine an improved means for removing they pulp which remains within the interstices o the foraminous pulp gathering member after the bulk of the pulp has been removed therefrom.

For full comprehension, however, of our invention reference must be hadto theaccompai'iying v drawings in which similar reference characters indicate the same parts,

and wherein:

' lfigure l is a plan View partly in section of a machine constructed according to our invention;

`l1igure 2 is a longtiudinal vertical sectional view taken on line 2 2 Figure 1;

` `Figure 3 is a transverse vertical sectional view taken on line'3--3 Figurev2.

'lhe machine illustrated in the drawings comprises a tank to which isfed the pulp carrying water;'a foraminous pulp gather ing cylinder-mold rotatably mounted therein and adapted to collect the pulp upon its peripheral area; va felt conveyor adapted to convey the pulp from the cylinder-mold to the usual press rolls (not shown), a couch roll, means for driving the cylindermold and couch roll at the same peripheral speeds, means for adjustably su )porting the couch roll, and a spray located within the cylinder-mold and adapted toremove the pulp which remains in the interstces therein 4after the bulkof the pulp has been transferred to the felt conveyor.

The tank or vat 1 is of rectangular form and comprises bottom 1.9, side walls 14, .end

walls 1c and a pair of intermediatewalls 1cl the latter being located at opposite ends of the tankkparallel and in close proximity to the walls 1c. "The pulp .carrying Water= enters the space within the tank or vat'betweenthe intermediate walls andv exteriorly of the cylinder mold through an inlet2 and flows into the cylinder through the `foramp inous periphery of the latte'r. -A The white water isdischarged from the4 cylinder at the opposite ends thereof through openings 30 in the walls 1d and leaves the tank through discharge outlets 3 in the end walls.

The pulp gathering cylinder mold 4 is of spiderless construction, that is to say it has no supporting spiders between its ends.

lt consistsof a skeleton frame comprising end spiders 5 spaced longitudinal bars 7 secured to and extending between thel spiders and a foraminous cylindrical Wall 8 constituted by wire wound spirally around such frame. The spiders are provided with outwardly projecting hubs 3l which are journalled in braces 32 bridging the openings 30 and forming component parts of the walls 1d. The openings 30 are substantially circular and o a diameter slightly less than that of the cylinder mold and they are surrounded by continuous inwardly extending flanges 33 which make butt joints with lsimilar flanges 34 on the spiders, the flanges 33 carrying annular packing strips 20 which overlap the flanges 34 and prevent egress of the water at these points. The pulp which vand 6. and a plurality ofl collects on the periphery of the foraminous` r cylinder is transferred to the felt conveyor 13 which is guided into contact with the top of the cylinder mold by a comparativel small roll 19. The small roll is of a lengtli equal tothat of the cylinder and it is provided with trunnions which are journalled in the tank walls ld,

= As the foraminous wall of the cylinder mold is supported from `its ends only it is essential that adjustable means be rovided for relieving the cylinder moldv o vpart or all of the weight of the couch roll 12. To this end the trunnions 35 of the couch roll are journalled in lever arms 10 atv a oint a short distance from one end thereo and such ends are fulcrumed in brackets 9,"on the tank the opposite ends of the levers being supported by pairs of helical rings 11 encircling vertically disposed bo ts 36 pivotally` supported attheir lower ends upon the tank.` The springs are arranged to bear between nuts at the top and bottom ends of the bolts andthe top and bottom sides of the levers and by screwing the nuts -up or down on their respective bolts a ,minute adjustment of the pressure of the couch roll on the cylinder mold `may be obtained. Although this adjustable couch roll supporting means is described and -illustrated as the preferred embodiment in our new and improved combination it is to be distinctly understoodthat the construction may be-modied without departing from the spirit of-theinvention as for instanceby employing an adjustable counter-weight.

I n order to drive the couch roll and cylinder mold at the same peripheral speed one of. the trunnions of the couch roll is extended axially in the form of a shaft which is provided' with a comparatively small conical pulley 38 and the hub 31 onthe adjacent vcylinder end is extended in a v similar manner through a stuiing box in the adjacent end wall of the tank and pro- I felt conveyor the vided with a conical pulley 14, the two pulleys being connected .by a belt 15 and the pulley 14 to shaft 37 by any preferred form of clutch.

AUpon `moving out of contact with `the periphery of the' cylinder mold is subjecte spray for the purpose of dislodging pulp remainin in the interstices of the foraminous cyllnder wall. This spray is readl ily accommodated by the clear space within the cylinder mold and consists ofa longitudinal spray pipe 1,8 located in fixed position withinthe cylinder mold adjacent the wall 8 thereof and perforated at its outer side for the urpose projecting the ,waterY Operation As the pulp carryin water enters the' tank and flows into t er cylinder mold through the foraminous wall 8 thereof and -from thence out `through openings 30 to the discharge outlets 3 and as the cylinder mold which is partially submerged in the pulp carrying water is' rotated the pulp fibre' under the influence of the flow is caused to adhere to the peripheral area of the cylinder. As the rotation continues the fibre is carried into to an internal water contact with the felt conveyor and transferred thereto and conveyed to the press rolls (not shown). After contacting with the felt the periphery of the cylinder mold passes the spray pipe18 the multiplicity of jets from which dislodges any libre remaining in ythe, interstices `in the 'periphery thereby substantially eliminating clogging and providing an uninterrupted passage for the water.

'What we claim is as follows:

1. In a wet machine the combination of a rotary cylinder mold, an internal spray,

`a couch roll and means for adjustably supporting said couch roll independently of the cylinder mold whereby part or all of its weight may be removed from the cylinder mold.

2. In a wet machine the combination of a rotary cylinder mold presenting a clear space therein from end yto end, a spray located within said space 'and extending thloughout the lengththereof, and a couch ro 3.'In a wet machine the combination of a rotary'cylinder mold, an internal spray, a couch oll, means for adjustably sup orting said couch roll independently of3 the 'cylinder mold whereby part or all of its weight may be removed fromthe cylinder mold, and means for driving the cylinder .mold and couch roll at approximatelyy the same peripheral speed.'

4. In a wet machine the combination of a. rotary cylinder mold, an internal spray,

a couch roll and means forA driving the cylinder. mold and couch roll at approximately-the same peripheral speed.

5. In a wet machine the combination of a rotary cylinder mold )resenting a clear space therein from end to end, va spray located within said space,- a couch roll, ad- 'u`stable means for supporting the couch roll mdependently of the4 cylinder mold whereby part or all of its weight may be removed rom the cylinder mok v l 6.` In a wet machine the combination of a rotary cylinder mold presenting a clear space therein from end to end, a spray located within said space, a couch roll, adjust- `able means for supporting `the couch roll independently of the cylinder mold whereby part or al1 of its weight maybe removed fronrthc cylinder mold, and means for driving the cylinder mold and couch roll at approximately the same peripheral speed.

` 7. In a wet machine the combination with av tank adapted to receive pulp-carrying water, a c linder mold rotatably mounted within sai tank and partially submerged in the pulp-carrying water said cylinder mold consisting of a foraminous cylinder wall and a supporting frame therefor comprising end f spiders and spaced longitudinal bars extending between and `supported upon said the cylinder mold and means for adjustablyv supporting the couch roll whereby a part or all of its weight may be removed from the cylinder mol i 8. In a wet machine the combination with a tank adapted to receive pulp-carrying water, a cylinder mold rotatably mounted within said tank and partially submerged in the pulp-carrying water said cylinder mold "consisting of a foraminous cylinder wall and a supporting frame therefor comprisingend spiders and spaced longitudinal bars extending between and supported upon said spiders at their/ends thereby presenting a-clear space lfbetween the spiders, a spray located within said cylinder mold and adapted to project water against the foraminous wall thereof, a couch roll inybearing relation with the cylinder mold and means for adjustably supporting the cou'ch roll whereby a part or all of its weightmay be removed from the cylinder mold, said lastmentioned means consisting of a pair of lever arms respectively supporting the oppo site ends of the couch roll, brackets mounte upon said tank'each of which has fulcrumed thereinuone end of one of said lever arms, and adjustable means for supporting the opposite ends of said lever arms'.

9. In a wet machine the combination of a rotary cylinder mold presenting a clear spacetherein from end to end, an internal spray, a, couch roll in bearing relation withl the cylinder mold and means for adjustably supporting the couch roll independently of the cylinder mold whereby part or all of its weight may be removed from the cylinder mold, said means consisting of lever arms respectively supporting the opposite ends of the couch roll, brackets supporting saidarms, and adjustable means adapted to collnter-balanee the vweight of said couch ro 10. In a wet machine the combination with a tank adapted toreceive pulp-carrying water, acylinder mold rotatably mounted within said tank and partially submerged in the pulp-carrying water said -eylinden mold consisting of a foraminous cylinder wall and a supporting frame therefor comprising end spiders and spaced longitudinal bars extending between andsupported upon said spiders at their ends thereby presenting a clear space between the spiders, a spray located within said cylinder mold and adapted tovproject water against the foraminous wall thereof, a couch roll in bearing relation with the cylinder-mold and means for adjustably supporting thel couch roll whereby a part or all of'its 'weight may be lwall, a spray pipe -removed from the cylinder mold, said lastmentioned means consisting of a pair of lever arms respectively supporting the opposite ends of the couch roll, brackets mounted upon saidtank each of whichhas fulcrumed therein one end of one of said lever arms,

adjustable means for supporting the opposite ends of said lever arms consisting of verticall disposed bolts supported upon `said tan and projecting through openings in the lever arms, a nut screwed upon each bolt at each end thereof and springs encircling said bolt and bearing between each nut and the opposite sides of the lever arm;

11. A ,wet machine consisting of a tank comprising a bottom, side walls, end walls and intermediate transverse walls and respectively disposed in close'proximity to the said end walls, 'the tank having an inletA opening communicating with the space between the intermediatewalls and discharge openings communicating with the spaces between the intermediate walls and end walls,

a cylinder mold located between saidv intermediate wallswand of a length substantially equal to the distance therebetween, said intcrmediate walls having` substantially circular openings of a diameter slightly less than the diameter of the cylinder mold, said openings being surrounded by continuous annular flanges carried by said intermediate walls and adapted to make butt-joints with corresponding flanges upon the adjacent ends of the cylinder mold, annular packing members overlapping said butt-joints, means bridging said openings and rotatably Supporting the cylinder mold said cylinder mold presenting a clear space therein between its ends. and having a foraminous cylinder ocated in fixed position within said clear space 'and havin a plurality of erforations in its outer si e adapted to project water through lsaid foraminous wall, a couch roll in bearing relation with said cylinderl mold, means for adjustably supporting said couch roll whereby part or all of its weight may be removed from the cylinder mol a second roll of comparatlvelysmall diameter rotatably mounted in said tank ad'acent the periphery of said cylinder mol contact with the periphery of said cylinder mold by the couch roll and said second roll. 12. A wet machine Vconsisting of a tank comprising a bottom, side walls, end walls and intermediate transverse walls and respectively disposed in close proximity to the said end wall the' tank having an inlet opening communicating with the space between the intermediate walls and discharge Aopenings communicating with the spaces between the intermediate walls and end walls, a cylinder mold located between said intermediate walls and of a length substantially equal to the distance therebetween, said inanda conveyer guided into i annular flanges carried by said 'intermediate walls and adapted to make butt-joints 'with lcorresponding flanges upon the adjacent ends of the cylinder mold,annular packing members overlapping said butt-joints, means bridging said openings and rotatably supportlng the cylinder mold said cylinder mold presenting a clear space therein between its ends and having a foraminous cylinder wall, a spray pipe located in fixed position within said clear space and having a plurality of perforations in its outer side adapted to project water through said foraminous Wall, a couch roll in bearing relation with said cylinder, mold, means for adjustably supporting said couch roll whereby partor all of its weight may be removed from the cylinderl mold, a second roll of comparatively small diameter rotatably mounted in said tank adjacent the periphery of said cylinder mold and a conveyer guided into contact with the periphery of said cylinder mold by the couch lroll and said second roll, and means for driving the couch roll and cylinder mold at approximately the 'same peripheral speed.

13. A wetmachine consisting of a tank comprising a bottom, side walls, end walls and intermediate transverse walls and respectively disposed in close proximity to the said end wall the tank having an inlet opening communicating with the space between the intermediate walls and discharge openings communicating with the spaces betweenthe intermediate walls and end walls,

a cylinder mold located between vsaid interequal to the distance therebetween, said in- I mediate walls and. of a length substantially termediatefwalls having substantially vcircular openings of a diameter slightly less `than the diameter of the cylinder mold, said -openings being surrounded by continuous annular ianges carried b said intermediate walls and adapted to ma e butt-joints with corresponding flanges upon the adjacent ends of the cylinder mold, annular packing members overlapping said butt-joints, means in bearing relation with said cylinder mold,

means for adjustably supportingsaid couch roll whereby part or all of its weight may be removed from the c linder mold,` a second roll of comparative y small diameter rotatably mounted in said tank adjacent the periphery of said cylinder mold and a conveyer guided into contact with the periphery of said cylinder mold by the couch roll and said second roll, means for driving the couch roll and cylinder mold at ap roximately the same peripheral speed, sai lastmentioned means consisting of a shaft adapted to rotate the cylinder mold, a second shaft adapted to rotate the couch roll and pulleys uponsaid shaft and a belt operatively connecting said pulleys. In testimony whereof we have signed our names to this specification.- l f GORDON F. MCCLAY.

HARRY V. HAIGHT. 

